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Title: Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator

Betatron radiation from laser wakefield accelerators is an ultrashort pulsed source of hard, synchrotron-like x-ray radiation. It emanates from a centimetre scale plasma accelerator producing GeV level electron beams. In recent years betatron radiation has been developed as a unique source capable of producing high resolution x-ray images in compact geometries. However, until now, the short pulse nature of this radiation has not been exploited. This report details the first experiment to utilize betatron radiation to image a rapidly evolving phenomenon by using it to radiograph a laser driven shock wave in a silicon target. The spatial resolution of the image is comparable to what has been achieved in similar experiments at conventional synchrotron light sources. The intrinsic temporal resolution of betatron radiation is below 100 fs, indicating that significantly faster processes could be probed in future without compromising spatial resolution. Quantitative measurements of the shock velocity and material density were made from the radiographs recorded during shock compression and were consistent with the established shock response of silicon, as determined with traditional velocimetry approaches. In conclusion, this suggests that future compact betatron imaging beamlines could be useful in the imaging and diagnosis of high-energy-density physics experiments.
Authors:
ORCiD logo [1] ;  [1] ; ORCiD logo [1] ;  [2] ; ORCiD logo [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [1] ;  [7] ;  [8] ;  [1] ;  [6] ; ORCiD logo [1] ;  [5] ; ORCiD logo [1] ;  [8] ; ORCiD logo [7] ;  [1] more »;  [6] ;  [6] ; ORCiD logo [3] ; ORCiD logo [1] « less
  1. Imperial College, London (United Kingdom)
  2. Imperial College, London (United Kingdom); Instituto Superior Tecnico, Lisboa (Portugal)
  3. Imperial College, London (United Kingdom); Univ. of Oxford, Oxford (United Kingdom)
  4. Univ. of Nevada, Reno, NV (United States)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Univ. of Michigan, Ann Arbor, MI (United States)
  7. Rutherford Appleton Lab., Didcot (United Kingdom)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-76SF00515; ST/J002062/1; ST/P000835/1; 13-LW-076; SCW 1575; NA0002372; FWP 100182; EP/I014462/1; 682399
Type:
Published Article
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS
OSTI Identifier:
1460474
Alternate Identifier(s):
OSTI ID: 1468960

Wood, Jonathan C., Chapman, D. J., Poder, K., Lopes, N. C., Rutherford, M. E., White, T. G., Albert, F., Behm, K. T., Booth, N., Bryant, J. S. J., Foster, P. S., Glenzer, S., Hill, E., Krushelnick, K., Najmudin, Z., Pollock, B. B., Rose, S., Schumaker, W., Scott, R. H. H., Sherlock, M., Thomas, A. G. R., Zhao, Z., Eakins, D. E., and Mangles, S. P. D.. Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator. United States: N. p., Web. doi:10.1038/s41598-018-29347-0.
Wood, Jonathan C., Chapman, D. J., Poder, K., Lopes, N. C., Rutherford, M. E., White, T. G., Albert, F., Behm, K. T., Booth, N., Bryant, J. S. J., Foster, P. S., Glenzer, S., Hill, E., Krushelnick, K., Najmudin, Z., Pollock, B. B., Rose, S., Schumaker, W., Scott, R. H. H., Sherlock, M., Thomas, A. G. R., Zhao, Z., Eakins, D. E., & Mangles, S. P. D.. Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator. United States. doi:10.1038/s41598-018-29347-0.
Wood, Jonathan C., Chapman, D. J., Poder, K., Lopes, N. C., Rutherford, M. E., White, T. G., Albert, F., Behm, K. T., Booth, N., Bryant, J. S. J., Foster, P. S., Glenzer, S., Hill, E., Krushelnick, K., Najmudin, Z., Pollock, B. B., Rose, S., Schumaker, W., Scott, R. H. H., Sherlock, M., Thomas, A. G. R., Zhao, Z., Eakins, D. E., and Mangles, S. P. D.. 2018. "Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator". United States. doi:10.1038/s41598-018-29347-0.
@article{osti_1460474,
title = {Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator},
author = {Wood, Jonathan C. and Chapman, D. J. and Poder, K. and Lopes, N. C. and Rutherford, M. E. and White, T. G. and Albert, F. and Behm, K. T. and Booth, N. and Bryant, J. S. J. and Foster, P. S. and Glenzer, S. and Hill, E. and Krushelnick, K. and Najmudin, Z. and Pollock, B. B. and Rose, S. and Schumaker, W. and Scott, R. H. H. and Sherlock, M. and Thomas, A. G. R. and Zhao, Z. and Eakins, D. E. and Mangles, S. P. D.},
abstractNote = {Betatron radiation from laser wakefield accelerators is an ultrashort pulsed source of hard, synchrotron-like x-ray radiation. It emanates from a centimetre scale plasma accelerator producing GeV level electron beams. In recent years betatron radiation has been developed as a unique source capable of producing high resolution x-ray images in compact geometries. However, until now, the short pulse nature of this radiation has not been exploited. This report details the first experiment to utilize betatron radiation to image a rapidly evolving phenomenon by using it to radiograph a laser driven shock wave in a silicon target. The spatial resolution of the image is comparable to what has been achieved in similar experiments at conventional synchrotron light sources. The intrinsic temporal resolution of betatron radiation is below 100 fs, indicating that significantly faster processes could be probed in future without compromising spatial resolution. Quantitative measurements of the shock velocity and material density were made from the radiographs recorded during shock compression and were consistent with the established shock response of silicon, as determined with traditional velocimetry approaches. In conclusion, this suggests that future compact betatron imaging beamlines could be useful in the imaging and diagnosis of high-energy-density physics experiments.},
doi = {10.1038/s41598-018-29347-0},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {7}
}